Swaging-machine.



W. T. MURPHY.

SWAGING MACHINE.

APPLICATION FILED JUNE 2, 1014.

Patented Nov. 17, 1914.

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WILLIAM T. MURPHY, 0F CRANSTON, RHODE ISLAND, ASSIGNOR TO STANDARD MACHINERY COMPANY, A CORPORATION OF RHODE ISLAND.

SWAGING-MACHIN E.

Specification of Letters Patent.

Patented Nov. 17, 1914..

Application filed June 2, 1914. Serial No. 842,511.

To all whom it may concern:

Be it known that I, \VILLIAM T. MURPHY, a citizen of the United States, residing at Cranston, inthe county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Swaging-Machines, of which the following is a specification.

My invention relates to that type of swaging or reducing machines wherein radially disposed reducing dies are actuated by the relative rotation of the die carrier, and a cage of, rollers.

The primary object of my invention is to reduce a rod to a non-curved cross sectional form; particularly in cases where the rod is of too short length for manual feeding; and to attain these ends with accuracy and speed.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts, which will be exemplified in the construction hereinafter set forth, and the scope and application of which will be indicated in the appended claims.

In the accompanying drawings which form a part of this specification, Figure 1, is a side elevation of my machine, partially in longitudinal central section, Figs. 2, 3, and 4, sections of the same on lines w, w, y, y, and e, 2, respectively, and Fig. 5, a central longitudinal section of a part of the swaging mechanism, showing in side elevation the feeding device engaged therewith.

Like reference characters indicate like parts throughout the views.

In the embodiment of my invention the assemblage of parts may comprise, in a general way, a frame 1 including a shell or head 2, and supports 3 and 1. Rotatably mounted in the frame or body 1 is a shaft 6 having an en larged cylindrical head 7, the shaft and head being provided with an axial opening 9. A driving wheel or pulley 10 is mounted upon the outer end of the shaft. The front face of the head is provided with a plurality of longitudinally disposed radial slots, in which are radially slidable outer and inner die sections 13 and 1 1. The former, which act as dogs, project slightly beyond the periphery of the head; and the latter, which are the dies proper, have plane end or operating faces 15, and beveled or inclined faces 16 at the sides of the plane faces, and

in contact with the inclined faces of the ads jacent dies. There is a resultant angular opening 18 at the intersection of the dies.

Fixed to the face of the head 7 by screws 20 in its base or flange 21 is a tubular shell or socket 23 provided with an internal longitudinal groove 24, and a curved end hearing surface 25 provided with a central orifice 26. Integral with or fixed to the exterior of the outer end of the shell by screws 28 is a lug 29 which projects beyond the end of the shell, and has its side in alinement with the side of the groove 24, as shown in Fig. 2.

Mounted in the head 2 of the machine around the head 7 of the shaft is a cage comprising, the ring 81 provided with transversely disposed cylindrical openings 32 in which are rotatably mounted rollers 33 of greater diameter than the thickness of the ring and extending into the path of the projecting ends of the die sections 13. The rolls are held against escape by a retaininggring 35 attached by screws 37 to the ring i1. A hardened steel bearing ring, 38, fixed by friction or otherwise in the head 2 of the frame surrounds the roller ring or cage 31 in contact with the rollers. A face plate 40 provided with a central opening 41 is attached to the face of the frame head 2 by bolts 42 or otherwise. i

It will be understood that the number of radial slots and of dies may be varied, and the operating faces of the dies my be of noncurved or plane outline. The number of rollers must, however, be the number, or a multiple of the number of slots in the head.

The operation of the described parts is as follows. The blank to be operated is inserted into the opening 18 and the dies are successively driven against its exterior by virtue of the rotation of the head 7, and the resultant engagement of the curved die sections 13 with the peripheries of the rolls 33 over which they ride. It is, however, essen- I i tial that the blank, during the reducing operation, does not change its axial relation with the operating faces of the dies, (a condition liable to occur when the head 7 is rotatable), otherwise the contour of the blank would become rounded. This difficulty is more acute when the blank operated on is too short to be manually fed. To overcome the diiliculty an auxiliary feeding mechanism is provided consisting of 11C a bracket arm 43 fixed by screws 44 or otherwise to the head 2 below the socket 23. Slidably mounted in a sleeve 4Z5 upon this arm is a rod 46 having upon its outer end a handle 48, and upon its inner end a head 50 in which is rotatably mounted a chuck casing 52 in which is fixed a chuck 5%. Near the end of the chuck casing upon its extrior is a lug 56. The axis of the chuck and chuck casing is in alinement with the axis of the head 7, and the lug 56 is at the same radial distance from the axial line as is the groove 2% of the socket 23, so that when the rod 46 is manually advanced with the lug 56 at the proper axial angle, the latter will enter said groove, and the chuck 54 will be driven by the spindle 6 through the socket 23 and the lug 56, thus insuring against any turn of the blank held in the chuck relatively to the operating faces of the dies. The initial entrance of the lug 56 into its groove is assured by the lug 29 which, as the chuck 5 1 longitudinally advances toward the rotaing socket 23, contacts with the lug 56 and guides the chuck to its seat while imparting initial rotary movement thereto.

What I claim is,

1. In a swaging machine of the type set forth, the combination with the rotary spindle, a spindle head, and means for re-.

ciprocating the spindle, of a socket upon the head provided with an internal groove, an external lug upon the socket, a reciprocating rotary chuck casing movable into and out of the socket, a chuck in the casing, and means for reciprocating the chuck.

2. In a swaging machine of the type set forth, the combination with a rotary spindle and means for actuating the same, of a head upon the spindle provided with radial slots,

copies of this patent may be obtained for dies in the slots provided with plane operating faces forming an angular opening at their inner ends, a cage surrounding the head, rollers in the head adapted to engage the dies, a socket fixed upon the head with its axis concentric with the opening and provided with an internal longitudinal groove, a lug upon the exterior of the socket adjacent the groove, a reciprocating rotary chuck casing movable into and out of the socket, a chuck in thecasing, a lug upon the casing in the path of the first lug and adapted to register in the groove, and means whereby the chuck casing may be reciprocated.

3. In a swaging machine of the type set forth, the combination of a frame, of a spindle mounted in the frame, a driving wheel upon the spindle, a head upon the spindle provided with radial slots, dies in the slots provided with plane inner faces forming an angular opening with their inner ends, a cage mount-ed in the frame and surrounding the head, rollers in the cage adapted to engage the outer ends of the dies, a rod slidablymounted in the frame in longitudinal alinement with the spindle, a socket fixed to the spindle head and provided with a longitudinal groove, a head upon the rod, a chuck casing rotatably mounted in the last mentioned head, a chuck in the casing, a lug on the casing adapted to register in the groove, and a lug upon the socket adapted to engage the lug upon the casing.

In testimony whereof I have affixed my signature in presence of two witnesses.

- I VIIJLIAM T. MURPHY.

Witnesses:

Eow. I-I, ZIEGLER, IIORATIO E. BnLLows.

five cents each, by addressing the Commissioner of Patents Washington, D. (2. 

